Run coveralls only for lts

Author: k2snowman69

.github/workflows/ci.yml

@@ -37,12 +37,39 @@ jobs:
       - name: Test
         run: npm test
 
+  back-compat-oldest-node:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [16.x]
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: "npm"
+
+      - name: Install
+        run: npm ci --ignore-scripts
+
+      - name: Build
+        run: npm run build --if-present
+
+      - name: Test
+        run: npm test
+
   build:
     runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        node-version: [16.x, lts/*]
+        node-version: [lts/*]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps: